I'm sure it does in certain cases (match fixing in Italy, bribes in FIFA etc) but I posted a clip yesterday of a penalty that wasn't given against Wolves last season for exactly the same type of incident. Was that referee biased towards Wolves/against Leeds?
It's easy to level accusations of bias and corruption when officials miss, what appear to be, obvious decisions but sometimes they just make the wrong call due to human error.
To get around that, VAR should be implemented properly. For the incident on Monday night, the VAR official should have told the referee to go and watch it again on the pitchside monitor so he could be sure he was happy with his decision.